Friction-hinge.



c. J. SCHNAUS. FRICTION HINGE. APPLICATION FILED APR.15, 1911.

Patented J an. 23, 1912.

Mzwassss INVANTOR CHHRLES .J. SCHNfiUS UNITED STATES PATENT OFFICE.

CHARLES J. SCHNAUS,

OF ST. LOUIS, MISSOURI, ASSIGNOR T0 EMERSON ELECTRIC MFG. 00., OF .ST. LOUIS, MISSOURI.

rnrc'rron nmen.

Specification of Letters Patent.-

Application filed April 15, 1911.

Patented Jan. 23, 1912.

Serial No. 621,383.

To all whom it may concern:

Be it known that I, CHARLES J. SCHNAUS, a citizen of the United States, residing at 1385 Hamilton avenue, St. Louis, Missouri,

have invented a certain new and useful Im-.

'Fig. 1. Fig. 8 is a sectional view on line 3-3, Fig. 2.

This invention relates to a new and useful improvement in a friction hinge, the object being to construct a hinge so that the friction faces may be varied according to requirements, i. e. increased or diminished, the parts of the hinge being preferably stamped from sheet metal, so as to form the laminations constituting the friction elements of the hinge.

My improved hinge is shown as being applied to a motor base for the purpose of adjusting the angular position of the motor, but it is obvious that there are other uses to which the hinge may be put.

In the drawings, 1 indicates the motor base, and 2 the motor.

3 is the pintle or pivot bolt of the hinge, the same having a butterfly nut 3* at one end.

. The upper end-of the motor base is slotted,

and this bolt passes through the upwardly extending ears formed by the slot, and also through washers 4 being preferably held against rotation by a non-circular portion 3 in its shank. 1

5 is a bracket secured to the motor having downwardly extending ears 5 which are preferably located adjacent to washers 4 and through which the pivot bolt 3 also passes. Between'the ears 5*" are a plurality of washers-6 and 7, certain of the former being loose or free to turn on the pivot bolt, while another (or others) are provided with extensions 6 to prevent their turning independently of the movement of the motor. The washers 7 have downward extensions 7,

whose lateral projections engage the motor base to prevent the washers 7 from turning independently of said motor base. While I have showntwo loose and one fixed washers 6, and two fixed washers 7, it is obvious that the proportions of these loose and fixed washers can be changed depending upon the amount of friction surface required.

The parts are assembled in a manner which. will be readily understood from the drawings, and to ad ust the motor or movable part of the hinge, the butterfly nut is loosened and the part moved to the desired position, after which it may be tightened, or the nut may be tightened, so as to place the required friction in the hinge and the part moved to any position desired.

What I claim is:

In a device of the class described, a stationary member, a movable member pivoted to said stationary member by a removable bolt and. nut, a plurality of removable washers others of said washers'being formed with projecting portions adapted to engage the movable member so as to be moved by it,

said washers adapted to engage the stationary member and said washers adapted to engage the movable member being disposed on said bolt interchangeably.

In testimony whereof I hereunto affix my signature in the ipresence of two witnesses, this 12th day of pril, 1911.

' CHARLES J. SOHNAUS. Witnesses: M. P. SMITH, B. L. CROWLEY. 

